Higher amounts of melanin in the skin inhibit the body's ability to manufacture vitamin D. This confers an adaptive advantage in environments with excessive sun exposure.
Answer the following statement true (T) or false (F)
True
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What does the p-value tell a researcher?
A) the likelihood that the observed result could have occurred by chance B) the accuracy of the study's findings C) the chance that the observation will be accepted by other scientists D) the level of importance of the finding
The primates that use leaves and vegetation as trail markers for communication are _______________
Fill in the blank(s) with correct word
Studies have shown that many foraging and small-scale horticultural societies work just a few hours a day on subsistence and have much more leisure time than workers in complex societies. Which of the following statements explains this model?
A) Any surplus food these societies collect or produce cannot be stored for long and will rot. B) These societies value leisure activities as more appropriate pursuits than labor. C) Members of these societies are lazy and have no interest in work. D) These groups have political authorities that would collect surpluses for their own use.
If a monopolistically competitive firm is producing 500 units of output and at this output level, the price is $2 and the average total cost is $2, the firm profit/loss is equal to ________ and it ________ possible for the firm to be in long-run equilibrium.
A) $0; is B) $50; is C) $0; is not D) -$50; is not